21359435

素因数分解:

$5^1\times {\mathrm{73}}^1\times {\mathrm{139}}^1\times {\mathrm{421}}^1$

素因数の和:638

約数の個数: 16

約数和(自身を含む): 26231520

約数和(自身を除く): 4872085

約数列:

[1, 5, 73, 139, 365, 421, 695, 2105, 10147, 30733, 50735, 58519, 153665, 292595, 4271887, 21359435]

約数ペア:

[(1, 21359435), (5, 4271887), (73, 292595), (139, 153665), (365, 58519), (421, 50735), (695, 30733), (2105, 10147)]